185/70 R13 doesn't belong to the most popular dimensions for summer tyres - there are 5 tyre models available, which can be compared to
155/60 R15,
170/60 R17,
160/60 R14. Let's break down the sizing - 70 is height of the tyre, which is calculated as 70% of the tyre width (185mm), which means the sidewall height has 129.5 mm. The wheel diameter is R13, which means it fits to a 13 inch/330.2mm diameter wheel. The total circumference of the tyre is 1851.03 mm, which is very similar to 195/60 R14
(1852.28 mm), 195/40 R17
(1846.63 mm), 205/45 R16
(1856.37 mm), 175/60 R15
(1856.68 mm), 185/50 R16
(1857.94 mm), 165/70 R14
(1842.86 mm), 205/50 R15
(1840.97 mm). There are multiple speed indexes available for summer tyres in 185/70 R13: H
(210km/h), N
(km/h), T
(190km/h), V
(240km/h). The same goes for weight indexes: 86, 106.
